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Syncing between Fedora and Duracloud

1. general requirements
   1. more control (selection? policies? granularity? frequency?) over sync changesets
   2. more control over restore (by date? version? object? datastream?)
2. flagging Fedora objects as "ready" for sync to DuraCloud
3. granularity of sync and restore
   1. object level?
   2. datastream level?
   3. versioning support in sync?
      • are objects stored in DuraCloud based on pid, or pid & version-id?
4. detecting bit rot
   • support for file repair
   • local utility for generating MD5 manifest keyed to DuraCloud content-ids?
5. provenance support for Fedora/DuraCloud interactions
   • premis entry returned from DuraCloud to add to Fedora audit datastream?

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